Actually it seems so. I'm no geologist but a quick google search for Gutenberg–Richter plots show that this 'kink' can have a very specific physical reason: ht

Actually it seems so. I'm no geologist but a quick google search for Gutenberg–Richter plots show that this 'kink' can have a very specific physical reason: http://www.frontiersin.org/files/Articles/233038/fbuil-02-00030-HTML/image_m/fbuil-02-00030-g005.jpg http://www.frontiersin.org/files/Articles/233038/fbuil-02-00...